EP1065962B1 - Coffee-grinder - Google Patents
Coffee-grinder Download PDFInfo
- Publication number
- EP1065962B1 EP1065962B1 EP99910668A EP99910668A EP1065962B1 EP 1065962 B1 EP1065962 B1 EP 1065962B1 EP 99910668 A EP99910668 A EP 99910668A EP 99910668 A EP99910668 A EP 99910668A EP 1065962 B1 EP1065962 B1 EP 1065962B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coffee
- crown
- fixed
- counter
- toothed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/12—Coffee mills; Spice mills having grinding discs
- A47J42/16—Coffee mills; Spice mills having grinding discs mechanically driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J42/00—Coffee mills; Spice mills
- A47J42/12—Coffee mills; Spice mills having grinding discs
- A47J42/20—Grinding discs
Definitions
- the present invention has for object a coffee-grinder especially to grind coffee into grains ready for use in coffee machines.
- coffee-grinders to be generally used associated to a proportioning device, on the side of the espresso coffee machine, to deliver the ground coffee to said coffee machine are known (DE.29713492U (cf preamble of claim 1); NL.9100762A; GB.906233A).
- These coffee-grinders are generally made up of two generally conical and/or more or less flat annularly shaped toothed wheels, one of which turns while the other remains fixed, forcing the coffee grains to be crushed and then to be finely pulverized before flowing into the proportioning device.
- the prior art drawbacks substantially are that the grinding is rough or in any event not regular enough.
- Purpose of the present invention is that of avoiding the aforementioned drawbacks and substantially improving the grinding operations.
- Figure 1 is a sectional view of the coffee-machine mounted on a coffee proportioning device together forming a grinder-proportioning device.
- Fig. 2 is an enlarged view of the coffee-grinder grinding group.
- Fig. 3 is an even larger view of the grinding group.
- Fig. 4 is a partial sectional top view of the grinding group.
- the innovation concerns a coffee-grinder of the type with grinding group having coaxial toothed wheels (12) with a rotating toothed part with respect to a fixed toothed crown (123) with internal charging of the beans and peripheral discharge of the fine ground coffee (116), characterised in that:
- 1 indicates the coffee-grinder and 2 indicates the proportioning device which receives the ground coffee from the periphery (116) of the grinding group (12) of the coffee-grinder.
- the coffee-grinder has a hopper for the coffee (110) which determines a mouth of the coffee in grains which must be ground (11).
- the hopper (110) rests on a support (111) which in turn rests on a counter-support (112) which supports a conveyance funnel (114) to the grinding group (12).
- the whole is contained in a cylinder-like support (113) with side opening (116) for the pouring of the powdered ground coffee into the proportioning device (2).
- the cylinder-like support (113), is embedded in the containing carter which makes up the coffee-grinder cover (115 ).
- the cylinder-like support (113) is fixed to a vertical electric motor structure (13) supported by underlying uprights (15), able to be disassembled.
- the rotor (135) of the electric motor (13) completed by the stator (134), has a fan (14) on the lower side, and on the upper side extends with a motor axis (131), which by means of a key (133) locks said star-like toothed pinion (121) of the grinding group (12).
- the toothing of the crowns is substantially realised with a 6° pitch.
Description
- said fixed toothed crown is substantially flat with spiral-like toothing with decreasing pitch towards the periphery and fixed on an overhanging fixed supporting means;
- said rotating toothed part is made up of two parts:
- a substantially flat counter-crown similarly toothed to the fixed one, spiral-like with decreasing pitch towards the periphery to grind the beans progressively finer;
- on the inside of said fixed crown and said counter-crown, a pinion having a star-like pyramidal shape with a fin-shaped toothing which extends with grooves becoming always less deep towards the lower base periphery, which substantially develops for the entire height of said fixed crown and counter-crown, and whose toothing is aimed, with the upper wide pitch, at crushing the grains against the upper teeth of said fixed crown, to then convey them towards the annular mouth having a substantially horizontal "V" shaped section, for the subsequent grinding between said fixed crown and rotating counter-crown together with said pinion.
- said fixed toothed crown (123) is substantially flat with spiral-like toothing with decreasing pitch towards the periphery and fixed on an overhanging fixed supporting means (112-1231);
- said rotating toothed part is made up of two parts:
- a substantially flat counter-crown (122) toothed like the fixed one, spiral-like with decreasing pitch towards the periphery (122') to grind the beans into an always and progressively finer size (123' - 122');
- inside of said fixed crown and said counter-crown, a pinion (121) having a star-like pyramidal shape (121') with a fin-like shaped toothing which extends with grooves becoming always less deep towards the periphery of the lower base (121"), which substantially develops for the whole height of said fixed crown (123) and counter-crown (122), and whose toothing is aimed, with the upper wide pitch (121') at crushing the beans against the upper teeth of said fixed crown (123'), to then convey them towards the annular mouth having a substantially horizontal "V" shaped section, for the subsequent grinding between said fixed crown (123) and rotating counter-crown (122) together with said pinion (121).
- said pinion has an eight-point star-like toothing.
Claims (6)
- Coffee-grinder of the type with grinding group having coaxial toothed wheels (12) with a rotating toothed part with respect to a fixed toothed crown (123), operating by internal charging of the grains and peripherally externally discharging the fine ground coffee (116), characterised in that:said fixed toothed crown (123) is substantially flat with spiral-like toothing with decreasing pitch towards the periphery and fixed on an overhanging fixed supporting means (112-1231);said rotating toothed part is made up of two parts:a substantially flat counter-crown (122) toothed like the fixed one, spiral-like with decreasing pitch towards the periphery (122') for grinding the grains into an always finer size (123' - 122');on the inside of said fixed crown and said counter-crown, a pinion (121) having a star-like pyramidal shape (121') with a fin-like shaped toothing which extends with grooves becoming always less deep towards the periphery of the lower base (121") which substantially develops for the whole height of said fixed crown (123) and counter-crown (122), and whose toothing is aimed, with the upper wide pitch (121') at crushing the grains against the upper teeth of said fixed crown (123'), to then convey them towards the annular mouth having a substantially horizontal "V" shaped section, for the subsequent grinding between said fixed crown (123) and said rotating counter-crown (122) together with said pinion (121).
- Coffee-grinder according to claim 1., characterised in that its has a hopper for the coffee (110) which determines a mouth of the coffee in grains which must be ground (11), the hopper (110) resting on a support (111) which in turn rests on a counter-support (112) which supports a conveying funnel (114) to the grinding group (12).
- Coffee-grinder according to the previous claims, characterised in that it comprises a cylinder-like support (113) which includes said grinding group (12), which is embedded in the containing carter (115) which makes up the coffee-grinder cover (1), such cylinder-like support (113) being fixed to a vertical electric motor structure (13) supported by underlying uprights (15), able to be disassembled, and in which the rotor (135) of said electric motor (13) completed by the stator (134), has a fan (14) on the lower side and on the upper side extends with a motor axis (131), which by means of a key (133) locks said star-like toothed pinion (121) of the grinding group 12 and a supporting rotating washer (132), which supports by screw locking (1220) said counter-crown (122).
- Coffee-grinder according to the previous claims, characterised in that said pinion (121) has an eight-point star-like toothing (121').
- Coffee-grinder according to the previous claims, characterised in that the crowns toothing is substantially realised with a 6° pitch.
- Grinder-proportioning device involving a coffee-grinder according to any of the previous claims.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT98UD000051A IT1299765B1 (en) | 1998-03-30 | 1998-03-30 | GRINDER' |
ITDA980051U | 1998-03-30 | ||
PCT/IT1999/000069 WO1999049768A1 (en) | 1998-03-30 | 1999-03-23 | Coffee-grinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1065962A1 EP1065962A1 (en) | 2001-01-10 |
EP1065962B1 true EP1065962B1 (en) | 2001-11-14 |
Family
ID=11422633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99910668A Expired - Lifetime EP1065962B1 (en) | 1998-03-30 | 1999-03-23 | Coffee-grinder |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1065962B1 (en) |
HU (1) | HU225786B1 (en) |
IT (1) | IT1299765B1 (en) |
WO (1) | WO1999049768A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1493368A1 (en) * | 2003-06-30 | 2005-01-05 | Fianara International B.V. | Coffee mill for a coffee machine |
US7273005B2 (en) | 2004-06-18 | 2007-09-25 | Saeco Ipr Limited | Coffee grinder assembly for a coffee machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFI20060281A1 (en) | 2006-11-14 | 2008-05-15 | Saeco Ipr Ltd | GRINDING ORGANS FOR A COFFEE MILL DEVICE AND A COFFEE MACHINE INCLUDING SUCH A DEVICE. |
US10556240B2 (en) | 2015-07-02 | 2020-02-11 | Serenity Data Security, Llc | Product verification for hard drive data destroying device |
EP3317019A4 (en) | 2015-07-02 | 2019-02-06 | Serenity Data Security, LLC | Hard drive dismantling system |
US11167384B2 (en) | 2015-07-02 | 2021-11-09 | Serenity Data Security, Llc | Hard drive non-destructive dismantling system |
TWI735654B (en) * | 2016-09-19 | 2021-08-11 | 義大利商辛巴利集團公司 | Grinding chamber of a grinding device for vegetal products suitable to form beverages, particularly coffee roasted beans |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB906233A (en) * | 1961-04-05 | 1962-09-19 | Farrow & Jackson Ltd | Apparatus for grinding non-magnetisable granular material |
NL9100762A (en) * | 1991-05-02 | 1992-12-01 | Peter Mathijs Boumans | Metering device |
DE29713492U1 (en) * | 1997-07-29 | 1997-11-06 | Stawert Muehlenbau Gmbh & Co K | Mill for free-flowing regrind, such as granular food, especially coffee |
-
1998
- 1998-03-30 IT IT98UD000051A patent/IT1299765B1/en active IP Right Grant
-
1999
- 1999-03-23 EP EP99910668A patent/EP1065962B1/en not_active Expired - Lifetime
- 1999-03-23 WO PCT/IT1999/000069 patent/WO1999049768A1/en active IP Right Grant
- 1999-03-23 HU HU0102261A patent/HU225786B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1493368A1 (en) * | 2003-06-30 | 2005-01-05 | Fianara International B.V. | Coffee mill for a coffee machine |
US7273005B2 (en) | 2004-06-18 | 2007-09-25 | Saeco Ipr Limited | Coffee grinder assembly for a coffee machine |
Also Published As
Publication number | Publication date |
---|---|
ITUD980051A0 (en) | 1998-03-30 |
HU225786B1 (en) | 2007-09-28 |
ITUD980051A1 (en) | 1999-09-30 |
WO1999049768A1 (en) | 1999-10-07 |
HUP0102261A3 (en) | 2005-05-30 |
EP1065962A1 (en) | 2001-01-10 |
HUP0102261A2 (en) | 2001-11-28 |
IT1299765B1 (en) | 2000-04-04 |
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